annotations - Alias for decorator in typescript

Question

I know there is alias for type:

type ShortTypeName = LooooooooooongTypeName

Now I am trying to simplify my complex typescript code with decorator, which I am not very familiar with. Supposed I have following code:

class Foo {
    @SomeDecorator(someConst1, someConst2, someConst3, someConst4)
    property1: string
    @SomeDecorator(someConst1, someConst2, someConst3, someConst4)
    property2: number
    @SomeDecorator(someConst1, someConst2, someConst3, someConst4)
    property3: Date
    @SomeDecorator(someConst1, someConst2, someConst3, someConst4)
    property4: Bar
}

I would like to use "alias" so that I can write it like:

alias D = SomeDecorator(someConst1, someConst2, someConst3, someConst4)

class Foo {
    @D
    property1: string
    @D
    property2: number
    @D
    property3: Date
    @D
    property4: Bar
}

I know that such alias does not exist, but I guess that this simplification can be done by declaring new decorator (i.e. declaring new function) D which calls SomeDecorator. How should I do it?

Answer 1

Ok I have found the solution. I can define D like the following code.

function D(target: any, propertyName: string) {
    const f = SomeDecoration(someConst1, someConst2, someConst3, someConst4)
    f(target, propertyName)
}